If it is linked to your reservation it shouldn't ask for payment. If you don't have your US reservation number ring disney UK and they will be able to give it to you.
I think you have to pay in advance for CRT - I know we did (we weren't on the dining plan that time though, back in 2008). I was told when I booked that the payment was just a "hold" and wouldn't be charged unless we didn't show up. However half way through the meal they bought out a credit card receipt out that they had charged to the card details I had given over the phone, which I wasn't very pleased about as its not the card I would have chose to use. So just make sure when you check in that you tell them you are on the DDP so they can sort your refund out/ don't charge you to start with!
Our Authorized Disney Vacation Planners are here to provide personalized, expert advice, answer every question, and uncover the best discounts.
Let Dreams Unlimited Travel take care of all the details, so you can sit back, relax, and enjoy a stress-free vacation.